Disambiguation and co-authorship networks of the U.S. patent inventor database (1975–2010)

Research into invention, innovation policy, and technology strategy can greatly benefit from an accurate understanding of inventor careers. The United States Patent and Trademark Office does not provide unique inventor identifiers, however, making large-scale studies challenging. Many scholars of innovation have implemented ad-hoc disambiguation methods based on string similarity thresholds and string comparison matching; such methods have been shown to be vulnerable to a number of problems that can adversely affect research results. The authors address this issue contributing (1) an application of the Author-ity disambiguation approach (0170 and 0175) to the US utility patent database, (2) a new iterative blocking scheme that expands the match space of this algorithm while maintaining scalability, (3) a public posting of the algorithm and code, and (4) a public posting of the results of the algorithm in the form of a database of inventors and their associated patents. The paper provides an overview of the disambiguation method, assesses its accuracy, and calculates network measures based on co-authorship and collaboration variables. It illustrates the potential for large-scale innovation studies across time and space with visualizations of inventor mobility across the United States. The complete input and results data from the original disambiguation are available at (http://dvn.iq.harvard.edu/dvn/dv/patent); revised data described here are at (http://funglab.berkeley.edu/pub/disamb_no_postpolishing.csv); original and revised code is available at (https://github.com/funginstitute/disambiguator); visualizations of inventor mobility are at (http://funglab.berkeley.edu/mobility/).     

Connecting Children's Stories to Children's Literature: Meeting Diversity Needs

Combining children's natural storytelling abilities with quality multicultural literature serves to enhance their language skills and students' appreciation of cultural differences. Narrative abilities—particularly stories—are a natural vehicle for building on children's oral language skills and develop literacy with print. If the stories have a multicultural focus, it is only natural that readers and participants will develop an appreciation of both cultural similarities and differences.     

Understanding school districts as learning systems: Some lessons from three cases of complex transformation

We report on a study of three school jurisdictions in the province of Alberta. The original premise for the research on which this report is based was to investigate the diverse ways that school districts had administered resources that were provided through a major initiative to improve learning in the province. This account is not centrally concerned with how funds were utilized; rather, we report on how districts?? strategies and emphases within the initiative offer windows into the their systemic characters. The range of manifest characters, we argue, is a useful construct to inform policy, ensure the presence of necessary supports and structures, implement appropriate accountability measures, and set reasonable goals for large-scale initiatives in education.     

A quoi servent les réponses des enfants? Evaluation des réponses d’enfants de 6–7 ans en mathématique

European Journal of Psychology of Education -